ExtenSilica · Version 1.0 · August 2026
XSIL Token Documentation
1. Introduction
ExtenSilica is a public registry for versioned RISC-V extension packages. The XSIL token represents reviewed contribution history and participation rights in the ExtenSilica ecosystem.
This document describes the token model, distribution, governance structure, and contribution criteria.
2. Token Overview
| Property | Value |
|---|---|
| Name | ExtenSilica Governance Token |
| Symbol | XSIL |
| Network | Base (Ethereum L2) |
| Chain ID | 8453 |
| Total supply | 10,000,000 XSIL |
| Contract | 0xCD64A7A8AB098Cd16E9b31E1139d8dD83530c0D8 |
| Standard | ERC-20 (permit, pausable) |
| Governance DAO | ExtenSilica DAO on Aragon (Base) |
| Market status | No established price or liquidity |
Contract: 0xCD64A7A8AB098Cd16E9b31E1139d8dD83530c0D8
Block explorer (Basescan)
https://basescan.org/address/0xcd64a7a8ab098cd16e9b31e1139d8dd83530c0d8Governance DAO (Aragon)
https://app.aragon.org/dao/base-mainnet/0x1FcE7Ae8B7c2fB4bf756801A270c1de237BF7c33/DAO on Base: 0x1FcE7Ae8B7c2fB4bf756801A270c1de237BF7c33
3. Token Purpose
XSIL tokens serve two purposes:
3.1 Contribution record
Each token represents verified contribution to the ExtenSilica ecosystem. Grant history is recorded off-chain on the platform ledger and reflected on-chain after transfer from the DAO treasury.
3.2 Governance participation
Token holders participate in ExtenSilica governance via the ExtenSilica DAO on Aragon. Decisions include feature priorities, registry policies, and future token distribution.
4. Token Distribution
Total supply is 10,000,000 XSIL. The founder allocation is issued at deploy; the remaining supply is held in the ExtenSilica DAO treasury on Aragon and distributed to contributors through governance-approved transfers. No tokens are sold. No ICO. Tokens are earned through contribution or distributed from treasury via DAO governance decision.
| Allocation | Amount | % | Notes |
|---|---|---|---|
| Founder | 3,000,000 | 30% | Minted to founder wallet at deploy |
| Treasury / DAO | 7,000,000 | 70% | Held by ExtenSilica DAO on Aragon; distributed to contributors via governance-approved transfers |
| Total | 10,000,000 | 100% |
5. Contribution Criteria
| Contribution | XSIL | Acceptance criteria |
|---|---|---|
| Publish first package | 500 | One-time per user |
| Publish each additional package | 200 | Per new package |
| Claim upstream ownership (approved) | 1,000 | After admin approval |
| Submit implementation (accepted) | 2,000 | After verifier approval |
| Complete verification run (pass) | 1,500 | As verifier |
| Paper citing ExtenSilica (documented) | 3,000 | Admin-verified citation |
| Contribute code to xsil CLI (merged PR) | 1,000–5,000 | Based on scope, admin-assigned |
| Vendor official claim (approved) | 5,000 | Organization-level grant |
| Report valid security issue | 2,000 | After the fix is deployed |
This is the current XSIL grant schedule. Each action must meet its acceptance criteria before the grant is confirmed. If a contribution request lists a different XSIL reward, its listed reward applies. Gaming, duplicate submissions, or low-quality contributions are disqualified.
6. Governance
ExtenSilica is governed via the ExtenSilica DAO on Aragon (Base network). XSIL is the governance token for proposals and votes in that DAO.
DAO contract (Base): 0x1FcE7Ae8B7c2fB4bf756801A270c1de237BF7c33
Voting parameters
| Parameter | Value |
|---|---|
| Voting weight | 1 XSIL = 1 vote |
| Approval threshold | >50% of votes cast |
| Minimum participation | 15% (1,500,000 XSIL) |
| Voting period | 7 days |
Governance scope
- Registry policies (provenance, publication, and curation)
- Featured package selection
- Future token distribution decisions
- Platform roadmap prioritization
7. Claim Process
- Submit eligible package or registry work for contribution review.
- Sign in at extensilica.com.
- Connect an Ethereum-compatible wallet (MetaMask, Coinbase Wallet, WalletConnect, etc.).
- Sign a free message to verify wallet ownership (no gas).
- Claim approved tokens — XSIL is transferred from the DAO treasury to your wallet on Base.
- Tokens appear in your connected wallet.
Gas fees are minimal on Base (typically under $0.01 per claim).
8. Future Liquidity
XSIL is worth $0 today. ExtenSilica does not sell XSIL. There is no ICO, presale, or paid allocation.
If ExtenSilica grows into widely used infrastructure, the role of XSIL may evolve through community governance. It may also never acquire any market value.
There are no promises. Build first.
9. XSIL Notice
This notice describes ExtenSilica's current conduct and commitments. It does not determine the legal classification of XSIL in any jurisdiction.
ExtenSilica is an independent project and is not affiliated with RISC-V International.